This option—which has been available in the U.S. since iOS 7—allows customers to tip their baristas if they choose to, when paying via the Starbucks iPhone app. After you make a payment with the app, you’ll receive a push notification alerting you of a tip option (no tip, $0.50, $1.00 or $2.00), as seen below:

A notification also is shown within the Starbucks app’s home screen, reminding you of the option to leave a tip:

Let us know if you’ve tried this digital tip option at Starbucks yet. How often do you tip your baristas?